01166nam0-2200373li-450 99000024868020331620180312154633.00-521-36689-50024868USA010024868(ALEPH)000024868USA01002486820001109d1989----km-y0itay0103----baengGBDifferential equationstheir solution using symmetriesHans Stephaniedited by Malcolm MaccallumCambridge [etc.]University Presscopyr. 1989XII, 260 p.ill.23 cmequazioni differenzialisoluzioni numerichesimmetria51535Equazioni differenzialiStephani,Hans40414Maccallum,MalcolmSistema bibliotecario di Ateneo dell' Università di SalernoRICA990000248680203316515.35 STE0016430BKSCI1994120920001110USA01171520020403USA011633PATRY9020040406USA011618Differential equations1487874UNISA